1: # The LearningOnline Network with CAPA
2: # input definitons
3: #
4: # $Id: inputtags.pm,v 1.231 2007/09/26 19:30:30 albertel Exp $
5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27:
28: package Apache::inputtags;
29: use HTML::Entities();
30: use strict;
31: use Apache::loncommon;
32: use Apache::lonlocal;
33: use Apache::lonnet;
34: use LONCAPA;
35:
36:
37: BEGIN {
38: &Apache::lonxml::register('Apache::inputtags',('hiddenline','textfield','textline'));
39: }
40:
41: # Initializes a set of global variables used during the parse of the problem.
42: #
43: # @Apache::inputtags::input - List of current input ids.
44: # @Apache::inputtags::inputlist - List of all input ids seen this problem.
45: # @Apache::inputtags::response - List of all current resopnse ids.
46: # @Apache::inputtags::responselist - List of all response ids seen this
47: # problem.
48: # @Apache::inputtags::hint - List of all hint ids.
49: # @Apache::inputtags::hintlist - List of all hint ids seen this problem.
50: # @Apache::inputtags::previous - List describing if specific responseds
51: # have been used
52: # @Apache::inputtags::previous_version - Submission responses were used in.
53: # $Apache::inputtags::part - Current part id (valid only in
54: # <problem>)
55: # 0 if not in a part.
56: # @Apache::inputtags::partlist - List of part ids seen in the current
57: # <problem>
58: # @Apache::inputtags::status - List of problem statuses. First
59: # element is the status of the <problem>
60: # the remainder are for individual <part>s.
61: # %Apache::inputtags::params - Hash of defined parameters for the
62: # current response.
63: # @Apache::inputtags::import - List of all ids for <import> thes get
64: # join()ed and prepended.
65: # @Apache::inputtags::importlist - List of all import ids seen.
66: # $Apache::inputtags::response_with_no_part
67: # - Flag set true if we have seen a response
68: # that is not inside a <part>
69: # %Apache::inputtags::answertxt - <*response> tags store correct
70: # answer strings for display by <textline/>
71: # in this hash.
72: # %Apache::inputtags::submission_display
73: # - <*response> tags store improved display
74: # of submission strings for display by part
75: # end.
76:
77: sub initialize_inputtags {
78: @Apache::inputtags::input=();
79: @Apache::inputtags::inputlist=();
80: @Apache::inputtags::response=();
81: @Apache::inputtags::responselist=();
82: @Apache::inputtags::hint=();
83: @Apache::inputtags::hintlist=();
84: @Apache::inputtags::previous=();
85: @Apache::inputtags::previous_version=();
86: $Apache::inputtags::part='';
87: @Apache::inputtags::partlist=();
88: @Apache::inputtags::status=();
89: %Apache::inputtags::params=();
90: @Apache::inputtags::import=();
91: @Apache::inputtags::importlist=();
92: $Apache::inputtags::response_with_no_part=0;
93: %Apache::inputtags::answertxt=();
94: %Apache::inputtags::submission_display=();
95: }
96:
97: sub check_for_duplicate_ids {
98: my %check;
99: foreach my $id (@Apache::inputtags::partlist,
100: @Apache::inputtags::responselist,
101: @Apache::inputtags::hintlist,
102: @Apache::inputtags::importlist) {
103: $check{$id}++;
104: }
105: my @duplicates;
106: foreach my $id (sort(keys(%check))) {
107: if ($check{$id} > 1) {
108: push(@duplicates,$id);
109: }
110: }
111: if (@duplicates) {
112: &Apache::lonxml::error("Duplicated ids found, problem will operate incorrectly. Duplicated ids seen: ",join(', ',@duplicates));
113: }
114: }
115:
116: sub start_input {
117: my ($parstack,$safeeval)=@_;
118: my $id = &Apache::lonxml::get_id($parstack,$safeeval);
119: push (@Apache::inputtags::input,$id);
120: push (@Apache::inputtags::inputlist,$id);
121: return $id;
122: }
123:
124: sub end_input {
125: pop @Apache::inputtags::input;
126: return '';
127: }
128:
129: sub addchars {
130: my ($fieldid,$addchars)=@_;
131: my $output='';
132: foreach (split(/\,/,$addchars)) {
133: $output.='<a href="javascript:void(document.forms.lonhomework.'.
134: $fieldid.'.value+=\''.$_.'\')">'.$_.'</a> ';
135: }
136: return $output;
137: }
138:
139: sub start_textfield {
140: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
141: my $result = "";
142: my $id = &start_input($parstack,$safeeval);
143: my $resid=$Apache::inputtags::response[-1];
144: if ($target eq 'web') {
145: $Apache::lonxml::evaluate--;
146: my $partid=$Apache::inputtags::part;
147: my $oldresponse = &HTML::Entities::encode($Apache::lonhomework::history{"resource.$partid.$resid.submission"},'<>&"');
148: if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
149: my $cols = &Apache::lonxml::get_param('cols',$parstack,$safeeval);
150: if ( $cols eq '') { $cols = 80; }
151: my $rows = &Apache::lonxml::get_param('rows',$parstack,$safeeval);
152: if ( $rows eq '') { $rows = 16; }
153: my $addchars=&Apache::lonxml::get_param('addchars',$parstack,$safeeval);
154: $result='';
155: if ($addchars) {
156: $result.=&addchars('HWVAL_'.$resid,$addchars);
157: }
158: &Apache::lonhtmlcommon::add_htmlareafields('HWVAL_'.$resid);
159: $result.= '<textarea wrap="hard" name="HWVAL_'.$resid.'" id="HWVAL_'.$resid.'" '.
160: "rows=\"$rows\" cols=\"$cols\">".$oldresponse;
161: if ($oldresponse ne '') {
162:
163: #get rid of any startup text if the user has already responded
164: &Apache::lonxml::get_all_text("/textfield",$parser,$style);
165: }
166: } else {
167: #show past answer in the essayresponse case
168: if ($oldresponse =~ /\S/
169: && &Apache::londefdef::is_inside_of($tagstack,
170: 'essayresponse') ) {
171: $result='<table class="LC_pastsubmission"><tr><td>'.
172: $oldresponse.'</td></tr></table>';
173: }
174: #get rid of any startup text
175: &Apache::lonxml::get_all_text("/textfield",$parser,$style);
176: }
177: } elsif ($target eq 'grade') {
178: my $seedtext=&Apache::lonxml::get_all_text("/textfield",$parser,
179: $style);
180: if ($seedtext eq $env{'form.HWVAL_'.$resid}) {
181: # if the seed text is still there it wasn't a real submission
182: $env{'form.HWVAL_'.$resid}='';
183: }
184: } elsif ($target eq 'edit') {
185: $result.=&Apache::edit::tag_start($target,$token);
186: $result.=&Apache::edit::text_arg('Rows:','rows',$token,4);
187: $result.=&Apache::edit::text_arg('Columns:','cols',$token,4);
188: $result.=&Apache::edit::text_arg
189: ('Click-On Texts (comma sep):','addchars',$token,10);
190: my $bodytext=&Apache::lonxml::get_all_text("/textfield",$parser,
191: $style);
192: $result.=&Apache::edit::editfield($token->[1],$bodytext,'Text you want to appear by default:',80,2);
193: } elsif ($target eq 'modified') {
194: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
195: $safeeval,'rows','cols',
196: 'addchars');
197: if ($constructtag) {
198: $result = &Apache::edit::rebuild_tag($token);
199: } else {
200: $result=$token->[4];
201: }
202: $result.=&Apache::edit::modifiedfield("/textfield",$parser);
203: } elsif ($target eq 'tex') {
204: my $number_of_lines = &Apache::lonxml::get_param('rows',$parstack,$safeeval);
205: my $width_of_box = &Apache::lonxml::get_param('cols',$parstack,$safeeval);
206: if ($$tagstack[-2] eq 'essayresponse' and $Apache::lonhomework::type eq 'exam') {
207: $result = '\fbox{\fbox{\parbox{\textwidth-5mm}{';
208: for (my $i=0;$i<int $number_of_lines*2;$i++) {$result.='\strut \\\\ ';}
209: $result.='\strut \\\\\strut \\\\\strut \\\\\strut \\\\}}}';
210: } else {
211: my $TeXwidth=$width_of_box/80;
212: $result = '\vskip 1 mm \fbox{\fbox{\parbox{'.$TeXwidth.'\textwidth-5mm}{';
213: for (my $i=0;$i<int $number_of_lines*2;$i++) {$result.='\strut \\\\ ';}
214: $result.='}}}\vskip 2 mm ';
215: }
216: }
217: return $result;
218: }
219:
220: sub end_textfield {
221: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
222: my $result;
223: if ($target eq 'web') {
224: $Apache::lonxml::evaluate++;
225: if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
226: return "</textarea>";
227: }
228: } elsif ($target eq 'edit') {
229: $result=&Apache::edit::end_table();
230: }
231: &end_input;
232: return $result;
233: }
234:
235: sub exam_score_line {
236: my ($target) = @_;
237:
238: my $result;
239: if ($target eq 'tex') {
240: my $repetition = &Apache::response::repetition();
241: $result.='\begin{enumerate}';
242: if ($env{'request.state'} eq "construct" ) {$result.='\item[\strut]';}
243: foreach my $i (0..$repetition-1) {
244: $result.='\item[\textbf{'.
245: ($Apache::lonxml::counter+$i).
246: '}.]\textit{Leave blank on scoring form}\vskip 0 mm';
247: }
248: $result.= '\end{enumerate}';
249: }
250:
251: return $result;
252: }
253:
254: sub exam_box {
255: my ($target) = @_;
256: my $result;
257:
258: if ($target eq 'tex') {
259: $result .= '\fbox{\fbox{\parbox{\textwidth-5mm}{\strut\\\\\strut\\\\\strut\\\\\strut\\\\}}}';
260: $result .= &exam_score_line($target);
261: } elsif ($target eq 'web') {
262: my $id=$Apache::inputtags::response[-1];
263: $result.= '<br /><br />
264: <textarea name="HWVAL_'.$id.'" rows="4" cols="50">
265: </textarea> <br /><br />';
266: }
267: return $result;
268: }
269:
270: sub needs_exam_box {
271: my ($tagstack) = @_;
272: my @tags = ('formularesponse',
273: 'stringresponse',
274: 'reactionresponse',
275: 'organicresponse',
276: );
277:
278: foreach my $tag (@tags) {
279: if (grep(/\Q$tag\E/,@$tagstack)) {
280: return 1;
281: }
282: }
283: return 0;
284: }
285:
286: sub start_textline {
287: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
288: my $result = "";
289: my $input_id = &start_input($parstack,$safeeval);
290: if ($target eq 'web') {
291: $Apache::lonxml::evaluate--;
292: my $partid=$Apache::inputtags::part;
293: my $id=$Apache::inputtags::response[-1];
294: if (!&Apache::response::show_answer()) {
295: my $size = &Apache::lonxml::get_param('size',$parstack,$safeeval);
296: my $maxlength;
297: if ($size eq '') { $size=20; } else {
298: if ($size < 20) {
299: $maxlength = ' maxlength="'.$size.'"';
300: }
301: }
302: my $oldresponse = $Apache::lonhomework::history{"resource.$partid.$id.submission"};
303: &Apache::lonxml::debug("oldresponse $oldresponse is ".ref($oldresponse));
304:
305: if (ref($oldresponse) eq 'ARRAY') {
306: $oldresponse = $oldresponse->[$#Apache::inputtags::inputlist];
307: }
308: $oldresponse = &HTML::Entities::encode($oldresponse,'<>&"');
309:
310: if ($Apache::lonhomework::type ne 'exam') {
311: my $addchars=&Apache::lonxml::get_param('addchars',$parstack,$safeeval);
312: $result='';
313: if ($addchars) {
314: $result.=&addchars('HWVAL_'.$id,$addchars);
315: }
316: my $readonly=&Apache::lonxml::get_param('readonly',$parstack,
317: $safeeval);
318: if (lc($readonly) eq 'yes'
319: || $Apache::inputtags::status[-1] eq 'CANNOT_ANSWER') {
320: $readonly=' readonly="readonly" ';
321: } else {
322: $readonly='';
323: }
324: my $name = 'HWVAL_'.$id;
325: if ($Apache::inputtags::status[-1] eq 'CANNOT_ANSWER') {
326: $name = "none";
327: }
328: $result.= '<input onkeydown="javascript:setSubmittedPart(\''.$partid.'\');" type="text" '.$readonly.' name="'.$name.'" value="'.
329: $oldresponse.'" size="'.$size.'"'.$maxlength.' />';
330: }
331: if ($Apache::lonhomework::type eq 'exam'
332: && &needs_exam_box($tagstack)) {
333: $result.=&exam_box($target);
334: }
335: } else {
336: #right or wrong don't show what was last typed in.
337: my $count = scalar(@Apache::inputtags::inputlist)-1;
338: $result='<b>'.$Apache::inputtags::answertxt{$id}[$count].'</b>';
339: #$result='';
340: }
341: } elsif ($target eq 'edit') {
342: $result=&Apache::edit::tag_start($target,$token);
343: $result.=&Apache::edit::text_arg('Size:','size',$token,'5').
344: &Apache::edit::text_arg('Click-On Texts (comma sep):',
345: 'addchars',$token,10);
346: $result.=&Apache::edit::select_arg('Readonly:','readonly',
347: ['no','yes'],$token);
348: $result.=&Apache::edit::end_row();
349: $result.=&Apache::edit::end_table();
350: } elsif ($target eq 'modified') {
351: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
352: $safeeval,'size',
353: 'addchars','readonly');
354: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
355: } elsif ($target eq 'tex'
356: && $Apache::lonhomework::type ne 'exam') {
357: my $size = &Apache::lonxml::get_param('size',$parstack,$safeeval);
358: if ($size != 0) {$size=$size*2; $size.=' mm';} else {$size='40 mm';}
359: $result='\framebox['.$size.'][s]{\tiny\strut}';
360:
361: } elsif ($target eq 'tex'
362: && $Apache::lonhomework::type eq 'exam'
363: && &needs_exam_box($tagstack)) {
364: $result.=&exam_box($target);
365: }
366: return $result;
367: }
368:
369: sub end_textline {
370: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
371: if ($target eq 'web') { $Apache::lonxml::evaluate++; }
372: elsif ($target eq 'edit') { return ('','no'); }
373: &end_input();
374: return "";
375: }
376:
377: sub start_hiddenline {
378: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
379: my $result = "";
380: my $input_id = &start_input($parstack,$safeeval);
381: if ($target eq 'web') {
382: $Apache::lonxml::evaluate--;
383: if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
384: my $partid=$Apache::inputtags::part;
385: my $id=$Apache::inputtags::response[-1];
386: my $oldresponse = $Apache::lonhomework::history{"resource.$partid.$id.submission"};
387: if (ref($oldresponse) eq 'ARRAY') {
388: $oldresponse = $oldresponse->[$#Apache::inputtags::inputlist];
389: }
390: $oldresponse = &HTML::Entities::encode($oldresponse,'<>&"');
391:
392: if ($Apache::lonhomework::type ne 'exam') {
393: $result= '<input type="hidden" name="HWVAL_'.$id.'" value="'.
394: $oldresponse.'" />';
395: }
396: }
397: } elsif ($target eq 'edit') {
398: $result=&Apache::edit::tag_start($target,$token);
399: $result.=&Apache::edit::end_table;
400: }
401:
402: if ( ($target eq 'web' || $target eq 'tex')
403: && $Apache::lonhomework::type eq 'exam'
404: && &needs_exam_box($tagstack)) {
405: $result.=&exam_box($target);
406: }
407: return $result;
408: }
409:
410: sub end_hiddenline {
411: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
412: if ($target eq 'web') { $Apache::lonxml::evaluate++; }
413: elsif ($target eq 'edit') { return ('','no'); }
414: &end_input();
415: return "";
416: }
417:
418: # $part -> partid
419: # $id -> responseid
420: # $uploadefiletypes -> comma seperated list of extensions allowed or * for any
421: # $which -> 'uploadedonly' -> only newly uploaded files
422: # 'portfolioonly' -> only allow files from portfolio
423: # 'both' -> allow files from either location
424: # $extratext -> additional text to go between the link and the input box
425: # returns a table row <tr>
426: sub file_selector {
427: my ($part,$id,$uploadedfiletypes,$which,$extratext)=@_;
428: if (!$uploadedfiletypes) { return ''; }
429:
430: my $jspart=$part;
431: $jspart=~s/\./_/g;
432:
433: my $result;
434:
435: $result.='<tr><td>';
436: if ($uploadedfiletypes ne '*') {
437: $result.=
438: &mt('Allowed filetypes: <b>[_1]</b>',$uploadedfiletypes).'<br />';
439: }
440: if ($which eq 'uploadonly' || $which eq 'both') {
441: $result.=&mt('Submit a file: (only one file can be uploaded)').
442: ' <br /><input type="file" size="50" name="HWFILE'.
443: $jspart.'_'.$id.'" /><br />';
444: $result .= &show_past_file_submission($part,$id);
445: }
446: if ( $which eq 'both') {
447: $result.='<br />'.'<strong>'.&mt('OR:').'</strong><br />';
448: }
449: if ($which eq 'portfolioonly' || $which eq 'both') {
450: $result.=$extratext.'<a href='."'".'javascript:void(window.open("/adm/portfolio?mode=selectfile&fieldname='.$env{'form.request.prefix'}.'HWPORT'.$jspart.'_'.$id.'","cat","height=600,width=800,scrollbars=1,resizable=1,menubar=2,location=1"))'."'".'>'.
451: &mt('Select Portfolio Files').'</a><br />'.
452: '<input type="text" size="50" name="HWPORT'.$jspart.'_'.$id.'" value="" />'.
453: '<br />';
454: $result .= &show_past_portfile_submission($part,$id);
455:
456: }
457: $result.='</td></tr>';
458: return $result;
459: }
460:
461: sub show_past_file_submission {
462: my ($part,$id) = @_;
463: my $uploadedfile= &HTML::Entities::encode($Apache::lonhomework::history{"resource.$part.$id.uploadedfile"},'<>&"');
464:
465: return if (!$uploadedfile);
466:
467: my $url=$Apache::lonhomework::history{"resource.$part.$id.uploadedurl"};
468: &Apache::lonxml::extlink($url);
469: &Apache::lonnet::allowuploaded('/adm/essayresponse',$url);
470: my $icon=&Apache::loncommon::icon($url);
471: my $curfile='<a href="'.$url.'"><img src="'.$icon.
472: '" border="0" />'.$uploadedfile.'</a>';
473: return &mt('Currently submitted: <tt>[_1]</tt>',$curfile);
474:
475: }
476:
477: sub show_past_portfile_submission {
478: my ($part,$id) = @_;
479: if ($Apache::lonhomework::history{"resource.$part.$id.portfiles"}!~/[^\s]/){
480: return;
481: }
482: my (@file_list,@bad_file_list);
483: foreach my $file (split(/\s*,\s*/,&unescape($Apache::lonhomework::history{"resource.$part.$id.portfiles"}))) {
484: my (undef,undef,$domain,$user)=&Apache::lonnet::whichuser();
485: my $url="/uploaded/$domain/$user/portfolio$file";
486: my $icon=&Apache::loncommon::icon($url);
487: push(@file_list,'<a href="'.$url.'"><img src="'.$icon.
488: '" border="0" />'.$file.'</a>');
489: if (! &Apache::lonnet::stat_file($url)) {
490: &Apache::lonnet::logthis("bad file is $url");
491: push(@bad_file_list,'<a href="'.$url.'"><img src="'.$icon.
492: '" border="0" />'.$file.'</a>');
493: }
494: }
495: my $files = '<span class="LC_filename">'.
496: join('</span>, <span class="LC_filename">',@file_list).
497: '</span>';
498: my $result = &mt("Portfolio files previously selected: [_1]",$files);
499: if (@bad_file_list) {
500: my $bad_files = '<span class="LC_filename">'.
501: join('</span>, <span class="LC_filename">',@bad_file_list).
502: '</span>';
503: $result.='<br />'.&mt('<span class="LC_error">These file(s) don\'t exist:</span> [_1]',$bad_files);
504: }
505: return $result;
506:
507: }
508:
509: sub valid_award {
510: my ($award) =@_;
511: foreach my $possibleaward ('EXTRA_ANSWER','MISSING_ANSWER', 'ERROR',
512: 'NO_RESPONSE',
513: 'TOO_LONG', 'UNIT_INVALID_INSTRUCTOR',
514: 'UNIT_INVALID_STUDENT', 'UNIT_IRRECONCIBLE',
515: 'UNIT_FAIL', 'NO_UNIT',
516: 'UNIT_NOTNEEDED', 'WANTED_NUMERIC',
517: 'BAD_FORMULA', 'SIG_FAIL', 'INCORRECT',
518: 'MISORDERED_RANK', 'INVALID_FILETYPE',
519: 'DRAFT', 'SUBMITTED', 'ASSIGNED_SCORE',
520: 'APPROX_ANS', 'EXACT_ANS','COMMA_FAIL') {
521: if ($award eq $possibleaward) { return 1; }
522: }
523: return 0;
524: }
525:
526: {
527: my @awards = ('EXTRA_ANSWER', 'MISSING_ANSWER', 'ERROR', 'NO_RESPONSE',
528: 'TOO_LONG',
529: 'UNIT_INVALID_INSTRUCTOR', 'UNIT_INVALID_STUDENT',
530: 'UNIT_IRRECONCIBLE', 'UNIT_FAIL', 'NO_UNIT',
531: 'UNIT_NOTNEEDED', 'WANTED_NUMERIC', 'BAD_FORMULA',
532: 'COMMA_FAIL', 'SIG_FAIL', 'INCORRECT', 'MISORDERED_RANK',
533: 'INVALID_FILETYPE', 'DRAFT', 'SUBMITTED', 'ASSIGNED_SCORE',
534: 'APPROX_ANS', 'EXACT_ANS');
535: my $i=0;
536: my %fwd_awards = map { ($_,$i++) } @awards;
537: my $max=scalar(@awards);
538: @awards=reverse(@awards);
539: $i=0;
540: my %rev_awards = map { ($_,$i++) } @awards;
541:
542: sub finalizeawards {
543: my ($awardref,$msgref,$nameref,$reverse)=@_;
544: my $result;
545: if ($#$awardref == -1) { $result = "NO_RESPONSE"; }
546: if ($result eq '' ) {
547: my $blankcount;
548: foreach my $award (@$awardref) {
549: if ($award eq '') {
550: $result='MISSING_ANSWER';
551: $blankcount++;
552: }
553: }
554: if ($blankcount == ($#$awardref + 1)) { $result = 'NO_RESPONSE'; }
555: }
556: if (defined($result)) { return ($result); }
557:
558: # these awards are ordered from most important error through best correct
559: my $awards = (!$reverse) ? \%fwd_awards : \%rev_awards ;
560:
561: my $best = $max;
562: my $j=0;
563: my $which;
564: foreach my $award (@$awardref) {
565: if ($awards->{$award} < $best) {
566: $best = $awards->{$award};
567: $which = $j;
568: }
569: $j++;
570: }
571: if (defined($which)) {
572: if (ref($nameref)) {
573: return ($$awardref[$which],$$msgref[$which],$$nameref[$which]);
574: } else {
575: return ($$awardref[$which],$$msgref[$which]);
576: }
577: }
578: return ('ERROR',undef);
579: }
580: }
581:
582: sub decideoutput {
583: my ($award,$awarded,$awardmsg,$solved,$previous,$target)=@_;
584: my $message='';
585: my $button=0;
586: my $previousmsg;
587: my $css_class='orange';
588: my $added_computer_text=0;
589: my %possible_class =
590: ( 'correct' => 'LC_answer_correct',
591: 'charged_try' => 'LC_answer_charged_try',
592: 'not_charged_try' => 'LC_answer_not_charged_try',
593: 'no_grade' => 'LC_answer_no_grade',
594: 'no_message' => 'LC_no_message',
595: );
596:
597: my $part = $Apache::inputtags::part;
598: my $handgrade =
599: ('yes' eq lc(&Apache::lonnet::EXT("resource.$part.handgrade")));
600:
601: my $computer = ($handgrade)? ''
602: : " ".&mt("Computer's answer now shown above.");
603: &Apache::lonxml::debug("handgrade has :$handgrade:");
604:
605: if ($previous) { $previousmsg=&mt('You have entered that answer before'); }
606:
607: if ($solved =~ /^correct/) {
608: $css_class=$possible_class{'correct'};
609: $message=&mt('You are correct.');
610: if ($awarded < 1 && $awarded > 0) {
611: $message=&mt('You are partially correct.');
612: $css_class=$possible_class{'not_charged_try'};
613: } elsif ($awarded < 1) {
614: $message=&mt('Incorrect.');
615: $css_class=$possible_class{'charged_try'};
616: }
617: if ($env{'request.filename'} =~
618: m|/res/lib/templates/examupload.problem$|) {
619: $message = &mt("A score has been assigned.");
620: $added_computer_text=1;
621: } else {
622: if ($target eq 'tex') {
623: $message = '\textbf{'.$message.'}';
624: } else {
625: $message = "<b>".$message."</b>";
626: $message.= $computer;
627: }
628: $added_computer_text=1;
629: my ($symb) = &Apache::lonnet::whichuser();
630: if (($symb ne '')
631: &&
632: ($env{'course.'.$env{'request.course.id'}.
633: '.disable_receipt_display'} ne 'yes')) {
634: $message.=(($target eq 'web')?'<br />':' ').
635: &mt('Your receipt is').' '.&Apache::lonnet::receipt($Apache::inputtags::part).
636: (($target eq 'web')?&Apache::loncommon::help_open_topic('Receipt'):'');
637: }
638: }
639: $button=0;
640: $previousmsg='';
641: } elsif ($solved =~ /^excused/) {
642: if ($target eq 'tex') {
643: $message = ' \textbf{'.&mt('You are excused from the problem.').'} ';
644: } else {
645: $message = "<b>".&mt('You are excused from the problem.')."</b>";
646: }
647: $css_class=$possible_class{'charged_try'};
648: $button=0;
649: $previousmsg='';
650: } elsif ($award eq 'EXACT_ANS' || $award eq 'APPROX_ANS' ) {
651: if ($solved =~ /^incorrect/ || $solved eq '') {
652: $message = &mt("Incorrect").".";
653: $css_class=$possible_class{'charged_try'};
654: $button=1;
655: } else {
656: if ($target eq 'tex') {
657: $message = '\textbf{'.&mt('You are correct.').'}';
658: } else {
659: $message = "<b>".&mt('You are correct.')."</b>";
660: $message.= $computer;
661: }
662: $added_computer_text=1;
663: unless ($env{'course.'.
664: $env{'request.course.id'}.
665: '.disable_receipt_display'} eq 'yes') {
666: $message.=(($target eq 'web')?'<br />':' ').
667: 'Your receipt is '.&Apache::lonnet::receipt($Apache::inputtags::part).
668: (($target eq 'web')?&Apache::loncommon::help_open_topic('Receipt'):'');
669: }
670: $css_class=$possible_class{'correct'};
671: $button=0;
672: $previousmsg='';
673: }
674: } elsif ($award eq 'NO_RESPONSE') {
675: $message = '';
676: $css_class=$possible_class{'no_feedback'};
677: $button=1;
678: } elsif ($award eq 'EXTRA_ANSWER') {
679: $message = &mt('Some extra items were submitted.');
680: $css_class=$possible_class{'not_charged_try'};
681: $button = 1;
682: } elsif ($award eq 'MISSING_ANSWER') {
683: $message = &mt('Some items were not submitted.');
684: $css_class=$possible_class{'not_charged_try'};
685: $button = 1;
686: } elsif ($award eq 'ERROR') {
687: $message = &mt('An error occured while grading your answer.');
688: $css_class=$possible_class{'not_charged_try'};
689: $button = 1;
690: } elsif ($award eq 'TOO_LONG') {
691: $message = &mt("The submitted answer was too long.");
692: $css_class=$possible_class{'not_charged_try'};
693: $button=1;
694: } elsif ($award eq 'WANTED_NUMERIC') {
695: $message = &mt("This question expects a numeric answer.");
696: $css_class=$possible_class{'not_charged_try'};
697: $button=1;
698: } elsif ($award eq 'MISORDERED_RANK') {
699: $message = &mt('You have provided an invalid ranking');
700: if ($target ne 'tex') {
701: $message.=', '.&mt('please refer to').' '.&Apache::loncommon::help_open_topic('Ranking_Problems','help on ranking problems');
702: }
703: $css_class=$possible_class{'not_charged_try'};
704: $button=1;
705: } elsif ($award eq 'INVALID_FILETYPE') {
706: $message = &mt('Submission won\'t be graded. The type of file submitted is not allowed.');
707: $css_class=$possible_class{'not_charged_try'};
708: $button=1;
709: } elsif ($award eq 'SIG_FAIL') {
710: my ($used,$min,$max)=split(':',$awardmsg);
711: my $word = ($used < $min) ? 'more' : 'fewer';
712: $message = &mt("Submission not graded. Use $word digits.",$used);
713: $css_class=$possible_class{'not_charged_try'};
714: $button=1;
715: } elsif ($award eq 'UNIT_INVALID_INSTRUCTOR') {
716: $message = &mt('Error in instructor specifed unit. This error has been reported to the instructor.', $awardmsg);
717: if ($target ne 'tex') {$message.=&Apache::loncommon::help_open_topic('Physical_Units');}
718: $css_class=$possible_class{'not_charged_try'};
719: $button=1;
720: } elsif ($award eq 'UNIT_INVALID_STUDENT') {
721: $message = &mt('Unable to interpret units. Computer reads units as "[_1]".',&markup_unit($awardmsg,$target));
722: if ($target ne 'tex') {$message.=&Apache::loncommon::help_open_topic('Physical_Units');}
723: $css_class=$possible_class{'not_charged_try'};
724: $button=1;
725: } elsif ($award eq 'UNIT_FAIL' || $award eq 'UNIT_IRRECONCIBLE') {
726: $message = &mt('Incompatible units. No conversion found between "[_1]" and the required units.',&markup_unit($awardmsg,$target));
727: if ($target ne 'tex') {$message.=&Apache::loncommon::help_open_topic('Physical_Units');}
728: $css_class=$possible_class{'not_charged_try'};
729: $button=1;
730: } elsif ($award eq 'UNIT_NOTNEEDED') {
731: $message = &mt('Only a number required. Computer reads units of "[_1]".',&markup_unit($awardmsg,$target));
732: $css_class=$possible_class{'not_charged_try'};
733: $button=1;
734: } elsif ($award eq 'NO_UNIT') {
735: $message = &mt("Units required").'.';
736: if ($target ne 'tex') {$message.=&Apache::loncommon::help_open_topic('Physical_Units')};
737: $css_class=$possible_class{'not_charged_try'};
738: $button=1;
739: } elsif ($award eq 'COMMA_FAIL') {
740: $message = &mt("Proper comma separation is required").'.';
741: $css_class=$possible_class{'not_charged_try'};
742: $button=1;
743: } elsif ($award eq 'BAD_FORMULA') {
744: $message = &mt("Unable to understand formula");
745: $css_class=$possible_class{'not_charged_try'};
746: $button=1;
747: } elsif ($award eq 'INCORRECT') {
748: $message = &mt("Incorrect").'.';
749: $css_class=$possible_class{'charged_try'};
750: $button=1;
751: } elsif ($award eq 'SUBMITTED') {
752: $message = &mt("Your submission has been recorded.");
753: $css_class=$possible_class{'no_grade'};
754: $button=1;
755: } elsif ($award eq 'DRAFT') {
756: $message = &mt("A draft copy has been saved.");
757: $css_class=$possible_class{'not_charged_try'};
758: $button=1;
759: } elsif ($award eq 'ASSIGNED_SCORE') {
760: $message = &mt("A score has been assigned.");
761: $css_class=$possible_class{'correct'};
762: $button=0;
763: } elsif ($award eq '') {
764: if ($handgrade && $Apache::inputtags::status[-1] eq 'SHOW_ANSWER') {
765: $message = &mt("Nothing submitted.");
766: $css_class=$possible_class{'charged_try'};
767: } else {
768: $css_class=$possible_class{'not_charged_try'};
769: }
770: $button=1;
771: } else {
772: $message = &mt("Unknown message").": $award";
773: $button=1;
774: }
775: my (undef,undef,$domain,$user)=&Apache::lonnet::whichuser();
776: foreach my $resid(@Apache::inputtags::response){
777: if ($Apache::lonhomework::history{"resource.$part.$resid.handback"}) {
778: $message.='<br />';
779: my @files = split(/\s*,\s*/,
780: $Apache::lonhomework::history{"resource.$part.$resid.handback"});
781: my $file_msg;
782: foreach my $file (@files) {
783: $file_msg.= '<br /><a href="/uploaded/'."$domain/$user".'/'.$file.'">'.$file.'</a>';
784: }
785: $message .= &mt('Returned file(s): [_1]',$file_msg);
786: }
787: }
788:
789: if (lc($Apache::lonhomework::problemstatus) eq 'no' &&
790: $Apache::inputtags::status[-1] ne 'SHOW_ANSWER') {
791: $message = &mt("Answer Submitted: Your final submission will be graded after the due date.");
792: $css_class=$possible_class{'no_grade'};
793: $button=1;
794: }
795: if ($Apache::inputtags::status[-1] eq 'SHOW_ANSWER' &&
796: !$added_computer_text && $target ne 'tex') {
797: $message.= $computer;
798: $added_computer_text=1;
799: }
800: return ($button,$css_class,$message,$previousmsg);
801: }
802:
803: sub markup_unit {
804: my ($unit,$target)=@_;
805: if ($target eq 'tex') {
806: return '\texttt{'.&Apache::lonxml::latex_special_symbols($unit).'}';
807: } else {
808: return "<tt>".$unit."</tt>";
809: }
810: }
811:
812: sub removealldata {
813: my ($id)=@_;
814: foreach my $key (keys(%Apache::lonhomework::results)) {
815: if (($key =~ /^resource\.\Q$id\E\./) && ($key !~ /\.collaborators$/)) {
816: &Apache::lonxml::debug("Removing $key");
817: delete($Apache::lonhomework::results{$key});
818: }
819: }
820: }
821:
822: sub hidealldata {
823: my ($id)=@_;
824: foreach my $key (keys(%Apache::lonhomework::results)) {
825: if (($key =~ /^resource\.\Q$id\E\./) && ($key !~ /\.collaborators$/)) {
826: &Apache::lonxml::debug("Hidding $key");
827: my $newkey=$key;
828: $newkey=~s/^(resource\.\Q$id\E\.[^\.]+\.)(.*)$/${1}hidden${2}/;
829: $Apache::lonhomework::results{$newkey}=
830: $Apache::lonhomework::results{$key};
831: delete($Apache::lonhomework::results{$key});
832: }
833: }
834: }
835:
836: sub setgradedata {
837: my ($award,$msg,$id,$previously_used) = @_;
838: if ($Apache::lonhomework::scantronmode &&
839: &Apache::lonnet::validCODE($env{'form.CODE'})) {
840: $Apache::lonhomework::results{"resource.CODE"}=$env{'form.CODE'};
841: } elsif ($Apache::lonhomework::scantronmode &&
842: $env{'form.CODE'} eq '' &&
843: $Apache::lonhomework::history{"resource.CODE"} ne '') {
844: $Apache::lonhomework::results{"resource.CODE"}='';
845: }
846:
847: if (!$Apache::lonhomework::scantronmode &&
848: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
849: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
850: $Apache::lonhomework::results{"resource.$id.afterduedate"}=$award;
851: return '';
852: } elsif ( $Apache::lonhomework::history{"resource.$id.solved"} !~
853: /^correct/ || $Apache::lonhomework::scantronmode ||
854: lc($Apache::lonhomework::problemstatus) eq 'no') {
855: # the student doesn't already have it correct,
856: # or we are in a mode (scantron orno problem status) where a correct
857: # can become incorrect
858: # handle assignment of tries and solved status
859: my $solvemsg;
860: if ($Apache::lonhomework::scantronmode) {
861: $solvemsg='correct_by_scantron';
862: } else {
863: $solvemsg='correct_by_student';
864: }
865: if ($Apache::lonhomework::history{"resource.$id.afterduedate"}) {
866: $Apache::lonhomework::results{"resource.$id.afterduedate"}='';
867: }
868: if ( $award eq 'ASSIGNED_SCORE') {
869: $Apache::lonhomework::results{"resource.$id.tries"} =
870: $Apache::lonhomework::history{"resource.$id.tries"} + 1;
871: $Apache::lonhomework::results{"resource.$id.solved"} =
872: $solvemsg;
873: my $numawards=scalar(@Apache::inputtags::response);
874: $Apache::lonhomework::results{"resource.$id.awarded"} = 0;
875: foreach my $res (@Apache::inputtags::response) {
876: $Apache::lonhomework::results{"resource.$id.awarded"}+=
877: $Apache::lonhomework::results{"resource.$id.$res.awarded"};
878: }
879: if ($numawards > 0) {
880: $Apache::lonhomework::results{"resource.$id.awarded"}/=
881: $numawards;
882: }
883: } elsif ( $award eq 'APPROX_ANS' || $award eq 'EXACT_ANS' ) {
884: $Apache::lonhomework::results{"resource.$id.tries"} =
885: $Apache::lonhomework::history{"resource.$id.tries"} + 1;
886: $Apache::lonhomework::results{"resource.$id.solved"} =
887: $solvemsg;
888: $Apache::lonhomework::results{"resource.$id.awarded"} = '1';
889: } elsif ( $award eq 'INCORRECT' ) {
890: $Apache::lonhomework::results{"resource.$id.tries"} =
891: $Apache::lonhomework::history{"resource.$id.tries"} + 1;
892: if (lc($Apache::lonhomework::problemstatus) eq 'no' ||
893: $Apache::lonhomework::scantronmode) {
894: $Apache::lonhomework::results{"resource.$id.awarded"} = 0;
895: }
896: $Apache::lonhomework::results{"resource.$id.solved"} =
897: 'incorrect_attempted';
898: } elsif ( $award eq 'SUBMITTED' ) {
899: $Apache::lonhomework::results{"resource.$id.tries"} =
900: $Apache::lonhomework::history{"resource.$id.tries"} + 1;
901: $Apache::lonhomework::results{"resource.$id.solved"} =
902: 'ungraded_attempted';
903: } elsif ( $award eq 'DRAFT' ) {
904: $Apache::lonhomework::results{"resource.$id.solved"} = '';
905: } elsif ( $award eq 'NO_RESPONSE' ) {
906: #no real response so delete any data that got stored
907: &removealldata($id);
908: return '';
909: } else {
910: $Apache::lonhomework::results{"resource.$id.solved"} =
911: 'incorrect_attempted';
912: if (lc($Apache::lonhomework::problemstatus) eq 'no' ||
913: $Apache::lonhomework::scantronmode) {
914: $Apache::lonhomework::results{"resource.$id.tries"} =
915: $Apache::lonhomework::history{"resource.$id.tries"} + 1;
916: $Apache::lonhomework::results{"resource.$id.awarded"} = 0;
917: }
918: }
919: if (defined($msg)) {
920: $Apache::lonhomework::results{"resource.$id.awardmsg"} = $msg;
921: }
922: # did either of the overall awards chage? If so ignore the
923: # previous check
924: if (($Apache::lonhomework::results{"resource.$id.awarded"} eq
925: $Apache::lonhomework::history{"resource.$id.awarded"}) &&
926: ($Apache::lonhomework::results{"resource.$id.solved"} eq
927: $Apache::lonhomework::history{"resource.$id.solved"})) {
928: # check if this was a previous submission if it was delete the
929: # unneeded data and update the previously_used attribute
930: if ( $previously_used eq 'PREVIOUSLY_USED') {
931: if (lc($Apache::lonhomework::problemstatus) ne 'no') {
932: delete($Apache::lonhomework::results{"resource.$id.tries"});
933: $Apache::lonhomework::results{"resource.$id.previous"} = '1';
934: }
935: } elsif ( $previously_used eq 'PREVIOUSLY_LAST') {
936: #delete all data as they student didn't do anything, but save
937: #the list of collaborators.
938: &removealldata($id);
939: #and since they didn't do anything we were never here
940: return '';
941: } else {
942: $Apache::lonhomework::results{"resource.$id.previous"} = '0';
943: }
944: }
945: } elsif ( $Apache::lonhomework::history{"resource.$id.solved"} =~
946: /^correct/ ) {
947: #delete all data as they student already has it correct
948: &removealldata($id);
949: #and since they didn't do anything we were never here
950: return '';
951: }
952: $Apache::lonhomework::results{"resource.$id.award"} = $award;
953: if ($award eq 'SUBMITTED') {
954: &Apache::response::add_to_gradingqueue();
955: }
956: }
957:
958: sub find_which_previous {
959: my ($version) = @_;
960: my $part = $Apache::inputtags::part;
961: my (@previous_version);
962: foreach my $resp (@Apache::inputtags::response) {
963: my $key = "$version:resource.$part.$resp.submission";
964: my $submission = $Apache::lonhomework::history{$key};
965: my %previous = &Apache::response::check_for_previous($submission,
966: $part,$resp,
967: $version);
968: push(@previous_version,$previous{'version'});
969: }
970: return &previous_match(\@previous_version,
971: scalar(@Apache::inputtags::response));
972: }
973:
974: sub previous_match {
975: my ($previous_array,$count) = @_;
976: my $match = 0;
977: my @matches;
978: foreach my $versionar (@$previous_array) {
979: foreach my $version (@$versionar) {
980: $matches[$version]++;
981: }
982: }
983: my $which=0;
984: foreach my $elem (@matches) {
985: if ($elem eq $count) {
986: $match=1;
987: last;
988: }
989: $which++;
990: }
991: return ($match,$which);
992: }
993:
994: sub grade {
995: my ($target) = @_;
996: my $id = $Apache::inputtags::part;
997: my $response='';
998: if ( defined $env{'form.submitted'}) {
999: my (@awards,@msgs);
1000: foreach $response (@Apache::inputtags::response) {
1001: &Apache::lonxml::debug("looking for response.$id.$response.awarddetail");
1002: my $value=$Apache::lonhomework::results{"resource.$id.$response.awarddetail"};
1003: &Apache::lonxml::debug("keeping $value from $response for $id");
1004: push (@awards,$value);
1005: $value=$Apache::lonhomework::results{"resource.$id.$response.awardmsg"};
1006: &Apache::lonxml::debug("got message $value from $response for $id");
1007: push (@msgs,$value);
1008: }
1009: my ($finalaward,$msg) = &finalizeawards(\@awards,\@msgs);
1010: my $previously_used;
1011: if ( $#Apache::inputtags::previous eq $#awards ) {
1012: my ($match) =
1013: &previous_match(\@Apache::inputtags::previous_version,
1014: scalar(@Apache::inputtags::response));
1015:
1016: if ($match) {
1017: $previously_used = 'PREVIOUSLY_LAST';
1018: foreach my $value (@Apache::inputtags::previous) {
1019: if ($value eq 'PREVIOUSLY_USED' ) {
1020: $previously_used = $value;
1021: last;
1022: }
1023: }
1024: }
1025: }
1026: &Apache::lonxml::debug("final award $finalaward, $previously_used, message $msg");
1027: &setgradedata($finalaward,$msg,$id,$previously_used);
1028: }
1029: return '';
1030: }
1031:
1032: sub get_grade_messages {
1033: my ($id,$prefix,$target,$status) = @_;
1034:
1035: my ($message,$latemessage,$trystr,$previousmsg);
1036: my $showbutton = 1;
1037:
1038: my $award = $Apache::lonhomework::history{"$prefix.award"};
1039: my $awarded = $Apache::lonhomework::history{"$prefix.awarded"};
1040: my $solved = $Apache::lonhomework::history{"$prefix.solved"};
1041: my $previous = $Apache::lonhomework::history{"$prefix.previous"};
1042: my $awardmsg = $Apache::lonhomework::history{"$prefix.awardmsg"};
1043: &Apache::lonxml::debug("Found Award |$award|$solved|$awardmsg");
1044: if ( $award ne '' || $solved ne '' || $status eq 'SHOW_ANSWER') {
1045: &Apache::lonxml::debug('Getting message');
1046: ($showbutton,my $css_class,$message,$previousmsg) =
1047: &decideoutput($award,$awarded,$awardmsg,$solved,$previous,
1048: $target);
1049: if ($target eq 'tex') {
1050: $message='\vskip 2 mm '.$message.' ';
1051: } else {
1052: $message="<td class=\"$css_class\">$message</td>";
1053: if ($previousmsg) {
1054: $previousmsg="<td class=\"LC_answer_previous\">$previousmsg</td>";
1055: }
1056: }
1057: }
1058: my $tries = $Apache::lonhomework::history{"$prefix.tries"};
1059: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1060: &Apache::lonxml::debug("got maxtries of :$maxtries:");
1061: #if tries are set to negative turn off the Tries/Button and messages
1062: if (defined($maxtries) && $maxtries < 0) { return ''; }
1063: if ( $tries eq '' ) { $tries = '0'; }
1064: if ( $maxtries eq '' ) { $maxtries = '2'; }
1065: if ( $maxtries eq 'con_lost' ) { $maxtries = '0'; }
1066: my $tries_text=&mt('Tries');
1067: if ( $Apache::lonhomework::type eq 'survey' ||
1068: $Apache::lonhomework::parsing_a_task) {
1069: $tries_text=&mt('Submissions');
1070: }
1071:
1072: if ($showbutton) {
1073: if ($target eq 'tex') {
1074: if ($env{'request.state'} ne "construct"
1075: && $Apache::lonhomework::type ne 'exam'
1076: && $env{'form.suppress_tries'} ne 'yes') {
1077: $trystr = ' {\vskip 1 mm \small \textit{'.$tries_text.'} '.
1078: $tries.'/'.$maxtries.'} \vskip 2 mm ';
1079: } else {
1080: $trystr = '\vskip 0 mm ';
1081: }
1082: } else {
1083: $trystr = "<td><nobr>".$tries_text." $tries";
1084: if ($Apache::lonhomework::parsing_a_task) {
1085: } elsif($env{'request.state'} ne 'construct') {
1086: $trystr.="/$maxtries";
1087: } else {
1088: if (defined($Apache::inputtags::params{'maxtries'})) {
1089: $trystr.="/".$Apache::inputtags::params{'maxtries'};
1090: }
1091: }
1092: $trystr.="</nobr></td>";
1093: }
1094: }
1095:
1096: if ($Apache::lonhomework::history{"$prefix.afterduedate"}) {
1097: #last submissions was after due date
1098: $latemessage=&mt(' The last submission was after the Due Date ');;
1099: if ($target eq 'web') {
1100: $latemessage='<td class="LC_answer_late">'.$latemessage.'</td>';
1101: }
1102: }
1103: return ($previousmsg,$latemessage,$message,$trystr,$showbutton);
1104: }
1105:
1106: sub gradestatus {
1107: my ($id,$target,$no_previous) = @_;
1108: my $showbutton = 1;
1109: my $message = '';
1110: my $latemessage = '';
1111: my $trystr='';
1112: my $button='';
1113: my $previousmsg='';
1114:
1115: my $status = $Apache::inputtags::status['-1'];
1116: &Apache::lonxml::debug("gradestatus has :$status:");
1117: if ( $status ne 'CLOSED'
1118: && $status ne 'UNAVAILABLE'
1119: && $status ne 'INVALID_ACCESS'
1120: && $status ne 'NEEDS_CHECKIN'
1121: && $status ne 'NOT_IN_A_SLOT') {
1122:
1123: ($previousmsg,$latemessage,$message,$trystr) =
1124: &get_grade_messages($id,"resource.$id",$target,$status,
1125: $showbutton);
1126: if ( $status eq 'SHOW_ANSWER' || $status eq 'CANNOT_ANSWER') {
1127: $showbutton = 0;
1128: }
1129: if ( $status eq 'SHOW_ANSWER') {
1130: undef($previousmsg);
1131: }
1132: if ( $showbutton ) {
1133: if ($target ne 'tex') {
1134: $button =
1135: '<input
1136: onmouseup="javascript:setSubmittedPart(\''.$id.'\')"
1137: onsubmit="javascript:setSubmittedPart(\''.$id.'\')"
1138: type="submit" name="submit_'.$id.'"
1139: value="'.&mt('Submit Answer').'" />';
1140: }
1141: }
1142:
1143: }
1144: my $output= $previousmsg.$latemessage.$message.$trystr;
1145: if ($output =~ /^\s*$/) {
1146: return $button;
1147: } else {
1148: if ($target eq 'tex') {
1149: return $button.' \vskip 0 mm '.$output.' ';
1150: } else {
1151: $output =
1152: '<table><tr><td>'.$button.'</td>'.$output;
1153: if (!$no_previous) {
1154: $output.='<td>'.&previous_tries($id,$target).'</td>';
1155: }
1156: $output.= '</tr></table>';
1157: return $output;
1158: }
1159: }
1160: }
1161:
1162: sub previous_tries {
1163: my ($id,$target) = @_;
1164: my $output;
1165: my $status = $Apache::inputtags::status['-1'];
1166:
1167: my $count;
1168: my %count_lookup;
1169:
1170: foreach my $i (1..$Apache::lonhomework::history{'version'}) {
1171: my $prefix = $i.":resource.$id";
1172:
1173: next if (!exists($Apache::lonhomework::history{"$prefix.award"}));
1174: $count++;
1175: $count_lookup{$i} = $count;
1176:
1177: my ($previousmsg,$latemessage,$message,$trystr);
1178:
1179: ($previousmsg,$latemessage,$message,$trystr) =
1180: &get_grade_messages($id,"$prefix",$target,$status);
1181:
1182: if ($previousmsg ne '') {
1183: my ($match,$which) = &find_which_previous($i);
1184: $message=$previousmsg;
1185: my $previous = $count_lookup{$which};
1186: $message =~ s{(</td>)}{ as submission \# $previous $1};
1187: } elsif ($Apache::lonhomework::history{"$prefix.tries"}) {
1188: if (!(lc($Apache::lonhomework::problemstatus) eq 'no'
1189: && $Apache::inputtags::status[-1] ne 'SHOW_ANSWER')
1190: && $Apache::lonhomework::history{"$prefix.solved"} =~/^correct/
1191: ) {
1192:
1193: $message =~ s{(<td.*?>)(.*?)(</td>)}
1194: {$1 <strong>Correct</strong>. $3}s;
1195: }
1196: my $trystr = "(Try ".
1197: $Apache::lonhomework::history{"$prefix.tries"}.')';
1198: $message =~ s{(</td>)}{ $trystr $1};
1199: }
1200: my ($class) = ($message =~ m{<td.*class="([^"]*)"}); #"
1201: $message =~ s{(<td.*?>)}{<td>};
1202:
1203:
1204: $output.='<tr class="'.$class.'">';
1205: $output.='<td align="center">'.$count.'</td>';
1206: $output.=$message;
1207:
1208: foreach my $resid (@Apache::inputtags::response) {
1209: my $prefix = $prefix.".$resid";
1210: if (exists($Apache::lonhomework::history{"$prefix.submission"})) {
1211: my $submission =
1212: $Apache::inputtags::submission_display{"$prefix.submission"};
1213: if (!defined($submission)) {
1214: $submission =
1215: $Apache::lonhomework::history{"$prefix.submission"};
1216: }
1217: $output.='<td>'.$submission.'</td>';
1218: } else {
1219: $output.='<td></td>';
1220: }
1221: }
1222: $output.=&Apache::loncommon::end_data_table_row()."\n";
1223: }
1224: return if ($output eq '');
1225: my $headers =
1226: '<tr>'.'<th>'.&mt('Submission #').'</th><th>'.&mt('Try').
1227: '</th><th colspan="'.scalar(@Apache::inputtags::response).'">'.
1228: &mt('Submitted Answer').'</th>';
1229: $output ='<table class="LC_prior_tries">'.$headers.$output.'</table>';
1230: #return $output;
1231: $output = &Apache::loncommon::js_ready($output);
1232: $output.='<br /><form action=""><center><input type="button" name="close" value="'.&mt('Close Window').'" onClick="window.close()" /></center></form>';
1233:
1234: my $windowopen=&Apache::lonhtmlcommon::javascript_docopen();
1235: my $start_page =
1236: &Apache::loncommon::start_page('Previous Tries', undef,
1237: {'only_body' => 1,
1238: 'bgcolor' => '#FFFFFF',
1239: 'js_ready' => 1,
1240: 'inherit_jsmath' => 1, });
1241: my $end_page =
1242: &Apache::loncommon::end_page({'js_ready' => 1,});
1243: my $prefix = $env{'form.request.prefix'};
1244: $prefix =~ tr{.}{_};
1245: my $function_name = "LONCAPA_previous_tries_".$prefix.
1246: $Apache::lonxml::curdepth;
1247: my $result ="<script type=\"text/javascript\">
1248: // <![CDATA[
1249: function $function_name() {newWindow=open('','new_W','width=500,height=500,scrollbars=1,resizable=yes');newWindow.$windowopen;newWindow.document.writeln('$start_page $output $end_page');newWindow.document.close();newWindow.focus()}
1250: // ]]>
1251: </script><a href=\"javascript:$function_name();void(0);\">".&mt("Previous Tries")."</a><br />";
1252: #use Data::Dumper;
1253: #&Apache::lonnet::logthis(&Dumper(\%Apache::inputtags::submission_display));
1254: return $result;
1255: }
1256:
1257: 1;
1258: __END__
1259:
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